JP2012116230A - Combined harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance working efficiency of a combined harvester by preventing overheat of an engine, by blowing away dust-dirt sticking to a wide range of an outside surface of a dustproof net.SOLUTION: A dust removing device (21) is oppositely arranged on the outside surface of the dustproof net (16) arranged in a starting end part of a cooling air duct, and the dust removing device (21) is constituted of a cross-sectional flow fan (22) and a fan case (23) for covering the cross-sectional flow fan (22). The cross-sectional flow fan (22) is constituted of a fan shaft (22a), fan side plates (22b and 22b) installed on both sides of the fan shaft (22a) and blade plates (22c, etc.) installed along the radiator direction in an outer peripheral part of the fan side plates (22b and 22b). The fan case (23) is formed with a suction port (23a) for sucking outside air inside, and a blowout clearance (23b) for blowing off dust removing air along the outside surface of the dustproof net (16).

Description

  The present invention relates to a combine.

  In the dust-collecting device of the dust-proof net of the combiner, a suction-air shielding plate that partially shields the suction air that passes through the dust-proofing mesh is provided close to the inner surface of the dust-proof mesh, and the suction-air shielding plate is provided on the inner surface of the dust-proof mesh. A drive device that reciprocates linearly along the surface is provided, and a dust suction port that sucks dust on the outer surface of the dust screen is provided at the end of the reciprocation path of the suction shielding plate. It is known that the suction air passage is provided separately from the main suction passage that passes from the dust removal net through the radiator and reaches the cooling fan (Patent Document 1).

JP 2010-195368 A

  In the technique of the above-mentioned patent document, the wind shielding plate is reciprocated linearly along the net part of the radiator cover, and the influence of the suction air of the cooling fan in the net part is weakened. To blow away the dusts and dust adhering to the outside of the mesh surface. Therefore, because the dust-removing wind is weak and the area of the windshield plate is small, the blown-off dust may be attracted and attached again to the mesh surface by the suction air of the cooling fan, and the dust removal effect will not increase. There was a problem that engine overheating could not be effectively prevented and the work efficiency of the combine was lowered.

  Therefore, the present invention is intended to solve such problems.

In order to solve such a problem, the present invention has taken the following technical means.
The invention according to claim 1 is a combine comprising a control section (4), a threshing section (6), a grain tank (5), a cutting and conveying section (8), and an engine (E) for driving them. A dust-proof net (16) is disposed at a start end of a cooling air passage for supplying cooling air to the engine (E), and a cooling fan (12) is provided at a position on the upper side of the cooling air passage with respect to the engine (E). A radiator (13) is disposed between the cooling fan (12) and the dust-proof net (16), and a dust removing device (21) is provided opposite to the outer surface of the dust-proof net (16). The dust removing device (21) includes a cross flow fan (22) and a fan case (23) covering the cross flow fan (22), and the cross flow fan (22) includes a fan shaft (22a) and the fan shaft (22a). Fan side plates (22b) mounted on both sides of the fan shaft (22a) 22b) and a vane plate (22c,...) Attached to the outer peripheral portion of the fan side plate (22b, 22b) along the radial direction, and the fan case (23) has an intake port for sucking outside air (23a) and a blowout gap (23b) for blowing out the dust removal wind along the outer surface of the dustproof net (16).

  According to a second aspect of the present invention, the radiator (13) and the dustproof net (16) are formed in a rectangular shape when viewed from the direction in which the cooling air flows, and the dust removing device (21) faces the outer surface of the dustproof net (16). When the dust removing device (21) is provided, the dust removing device (21) is arranged at either the upper or lower one end or the left or right end of the dust net (16), and is sucked from the suction port (23a) of the fan case (23). The combine according to claim 1, wherein the outside air is blown out along the outer surface of the dust-proof net (16) from the blowing gap (23b).

  According to a third aspect of the present invention, the radiator (13) and the dustproof net (16) are formed in a rectangular shape when viewed from the direction in which the cooling air flows, and the dust removing device (21) is opposed to the outer surface of the dustproof net (16). When the dust removing device (21) is provided, the dust removing device (21) is arranged in the horizontal orientation in the vertical middle portion of the dustproof net (16) or in the vertical posture in the horizontal middle portion, and the suction port ( The outside air sucked from 23a) is blown out along the outer surface of the dust-proof net (16) from the blowing gaps (23b, 23c) provided on both sides of the fan case (23). It shall be the combine as described.

  According to a fourth aspect of the present invention, the radiator (13) and the dustproof net (16) are formed in a rectangular shape when viewed from the direction in which the cooling air flows, and the dust removing device (21) is opposed to the outer surface of the dustproof net (16). The dust removing device (21) is inclined in the left-right direction, and the outside air sucked from the suction port (23a) of the fan case (23) is blown out on both sides of the fan case (23). The combine according to claim 1, wherein the combine is blown out along the outer surface of the dust-proof net (16) from the gap (23b, 23c).

  According to the first aspect of the present invention, when the crossflow fan (22) rotates, the outside air is sucked from the suction port (23a) of the fan case (23), and the thin layer wind generated by the crossflow fan (22) is generated. Is blown out from the blow-off gap (23b) of the fan case (23) along the outer surface of the dust-proof net (16), and the dust adhering to the wide area of the outer surface of the dust-proof net (16) can be blown away. It is possible to prevent the engine (E) from overheating and increase the work efficiency of the combine.

  According to the second aspect of the present invention, since the dust removing device (21) is arranged along either the upper or lower one side end or the left or right side end of the dust net (16), the fan case (23) The outside air sucked from the suction port (23a) is blown out along the outer surface of the dust-proof net (16) from the blow-off gap (23b), and dust adhering to a wide area on the outer surface of the dust-proof net (16) can be blown off. Therefore, it is possible to prevent the engine (E) from overheating and to increase the work efficiency of the combine.

  According to the third aspect of the present invention, since the dust removing device (21) is arranged in the horizontal posture in the vertical middle portion of the dustproof net (16) or in the vertical posture in the horizontal middle portion, the fan case (23 ) The outside air sucked from the suction port (23a) is blown out toward the both sides along the outer surface of the dustproof net (16) from the blowout gap (23b, 23c), and adheres to a wide area of the outer surface of the dustproof net (16). Since dust that is being blown off can be blown out, overheating of the engine (E) can be prevented and the work efficiency of the combine can be increased.

  According to the fourth aspect of the present invention, the dust removing device (21) having a longitudinal configuration is formed in either the upper right inclined shape or the lower right inclined shape in the middle portion of the dust-proof net (16) when viewed from the flow direction of the cooling air. Since it is disposed, the air flowing in from the suction port (23a) of the fan case (23) is used as dust removal air from the blowing gaps (23b, 23c) toward both sides so as to be along the outer surface of the dustproof net (16). Since the dust adhering to the wide area on the outer surface of the blowout and dustproof net (16) can be blown off, the engine (E) can be prevented from overheating and the work efficiency of the combine can be improved.

It is a side view of a combine. It is a top view of a combine. It is a top view of an engine cooling structure. It is a perspective view of a dust remover. It is the side view and top view of a dust removal apparatus. It is a perspective view of a dust remover. It is a cutting top view of a dust removing device. It is a perspective view of a dust remover. It is a side view of a dust remover. It is a perspective view of a radiator and a cooling fan.

Embodiments of the present invention shown in the drawings will be described below. First, the overall structure of a combine equipped with the present invention will be described with reference to FIGS.
A pair of left and right crawler traveling devices 3 and 3 are disposed below the traveling vehicle body 2 of the combine 1, a control unit 4 is disposed on the right front side portion of the traveling vehicle body 2, and a Glen tank 5 is disposed on the rear side. The threshing unit 6 is disposed in the section, and the slaughtering unit 7 is disposed behind the threshing unit 6 and the glen tank 5. In front of the control unit 4 and the threshing unit 6, a cutting and conveying unit 8 that conveys the planted cereals to the threshing unit 6 at the rear of the cutting while raising the weeds is provided so as to be movable up and down.

Next, the cooling and dust removing configuration of the engine E and the radiator 13 will be described with reference to FIGS.
An engine room 11 is provided below the driver's seat 10 of the control unit 4 and an engine E is provided. A cooling fan 12 is mounted on the right outer side of the traveling direction of the engine E, a radiator 13 is disposed on the right outer side of the cooling fan 12, and an oil cooler and an intercooler are disposed above the radiator 13.

  The radiator cover 14 is detachably attached to the outer frame of the engine room 11, covers the radiator 13 at the inner side thereof, attaches the frame 15 to the outside of the radiator cover 14, and stretches the dust-proof net 16 to the frame 15. Has been established. Accordingly, when the cooling fan 12 is rotated, the cooling air passes through the dust-proof net 16 and is removed, and then flows into the radiator 13 to cool the radiator 13.

  In addition to the cooling fan 12, a dust removing device 21 is provided on the dust-proof net 16 of the frame 15. The dust removing device 21 includes a cross flow fan 22 and a fan case 23. The cross-flow fan 22 includes a fan shaft 22a, fan side plates 22b and 22b attached to both sides of the fan shaft 22a, and blade plates 22c along the radial direction on the outer periphery of the fan side plates 22b and 22b. Yes.

  As shown in FIGS. 4 and 5, the cross-flow fan 22 configured in this manner is disposed along the front-rear direction (left-right direction in FIG. 4) at the middle portion in the vertical direction on the outer surface of the dust-proof net 16, and the outside thereof. Is covered with a fan case 23. A suction port 23a is formed across the entire width in the front-rear direction of the case between the vertical middle portion of the fan case 23 and the dust-proof net 16, and an inner blowing gap is formed between the upper portion of the fan case 23 and the dust-proof net 16 over the entire width. 23b. Further, an outer blowing gap 23c is formed across the entire width between the lower side of the fan case 23 and the dustproof net 16.

  According to the above configuration, when the cross-flow fan 22 rotates, air flows from the suction port 23 a inside the fan case 23, and the thin plate-like wind generated by the cross-flow fan 22 is blown into the inner blowing gap on the upper side of the fan case 23. 23b is blown out along the outer surface of the upper dustproof net 16a, and the dust adhering to the outer surface of the upper dustproof net 16a is blown off and removed.

  Similarly, the wind blows out from the lower outer blowing gap 23c on the lower side of the fan case 23, blows away the dust adhering to the outer surface of the lower dust-proof net 16b, and removes a wide range of dust removal. it can.

  Further, when the dust removing device 21 is disposed opposite to the dust-proof net 16 of the frame 15, it is arranged along the front-rear direction at the vertical center of the dust-proof net 16 as described above, or the upper end of the dust-proof net 16. You may arrange | position along a front-back direction to a part. Further, the dust removing device 21 may be arranged along the vertical direction at the center in the front-rear direction of the dust-proof net 16, and the dust removing device 21 may be arranged along the vertical direction at the front end of the dust-proof net 16. Also good.

  Further, as shown in FIG. 4, when the fan case 23 is arranged along the front-rear direction, the rear end is closed, the front end is opened, and the transverse flow at the rear side of the fan case 23 is performed. The air blowing power of the fan 22 is increased, and the dust removing effect at the rear side is increased.

  Further, as shown in FIG. 5, when the blades 22c,... Of the cross flow fan 22 are rotated clockwise and the rear side portions of the blades 22c,. The inner blowing gap 23b is opposed to the part rotating inwardly upward, and the inner blowing gap 23b is arranged to face the lower end portion of the outer surface of the upper dustproof net 16a. Further, the outer blowing gap 23c is opposed to the portion rotating downward on the outside of the blades 22c,... And the outer blowing gap 23c is arranged to face the upper end of the outer surface of the lower dust-proof net 16b. The net 16a and the lower dustproof net 16b are arranged in a stepped manner that is displaced inward and outward.

  Further, when the cross flow fan 22 and the fan case 23 are arranged opposite to each other on the outer surface of the dustproof net 16, as shown in FIG. 5, when the blades 22c of the cross flow fan 22 rotate counterclockwise. A suction port 23a is provided near the inner side of the fan case 23, and an upper rotating portion is opposed to the inner blowing gap 23b that opens upward toward the inner side of the fan case 23 inside the blades 22c. The outer surface of the upper dust-proof net 16a faces the inner side of the inner blowing gap 23b so that the wind flows upward along the outer surface.

  Further, the outer blowing gap 23c that opens downward toward the outside of the fan case 23 is opposed to the lower rotating portion on the outside of the blades 22c, and the lower side of the outside blowing gap 23c. The outer surface of the dust-proof net 16b is opposed so that the wind flows downward along the outer surface.

  According to the above configuration, the dust removal wind of the cross flow fan 22 can be sent in parallel along the outer surface of the upper dustproof net 16a and the lower dustproof net 16b from the inner blowout gap 23b and the outer blowout gap 23c, It is possible to remove dust over a wide area of the upper and lower dustproof nets 16a and 16b, and to enhance the dust removal effect.

In addition, the dust removing device 21 may be disposed in a forwardly inclined manner with respect to the dustproof net 16 or may be disposed in a forwardly inclined manner.
In addition, a motor 24 is disposed on the inner side of the front side of the frame body 15 and in the peripheral portion of the cooling air as viewed from the flow direction of the cooling air, and the cross flow fan 22 from the motor 24 via the transmission device 25 is provided. Power is transmitted and driven. In addition, you may arrange | position the motor 24 and the transmission device 25 similarly to the rear side part inner side of the frame 15. FIG. Therefore, since the motor 24 and the transmission device 25 are not provided in the portion of the radiator 13 through which the cooling air passes, the cooling air flows smoothly to the radiator 13 and the cooling effect can be enhanced.

Next, another embodiment will be described with reference to FIGS.
The front side of the upper portion of the frame body 15 is configured as a lower front inclined portion 15a and is lowered to facilitate the operator to get on and off the control portion 4, and a dustproof net 16 is stretched on the frame body 15. The cross flow fan 22 is disposed along the vertical direction inside the front side of the frame body 15, and the outer side of the cross flow fan 22 is covered with a fan case 23 that is long in the vertical direction. In addition, a motor 24 is provided on the inner upper part (or lower part) of the front side portion of the frame 15, and power is transmitted from the motor 24 to the cross flow fan 22 via the transmission device 24.

  Then, the outer side of the cross flow fan 22 is covered with a fan case 23, and a suction port 23a is provided over the entire length of the case between the front frame 15b of the frame 15 and the front portion of the cross flow fan 22 along the entire vertical direction. Yes. Further, the rear side portion of the fan case 23 faces the front end portion of the outer surface of the dustproof net 16, and a rear blowing gap 23 d is formed over the entire length in the vertical direction between the outer surface of the dustproof net 16 and the dustproof net 16. Dust removal wind flows from the front side to the rear side along the outer side surface to remove dust. Thus, the dust blown off from the outer surface of the dust-proof net 16 flows backward, and it is possible to suppress the reattachment to the dust-proof net 16 and enhance the dust removal effect.

  Further, as shown in FIG. 6, when the fan case 23 is arranged along the vertical direction, the lower end of the fan case 23 is closed, the upper end is opened, and the lower side of the fan case 23 is opened. The air blowing force of the cross flow fan 22 at the end is increased, and the dust removal effect at the lower part of the dustproof net 16 with much dust is increased.

  Further, when the cross-flow fan 22 is driven in a state where the rotation of the cooling fan 12 is stopped, the dust suction force of the dust-proof net 16 is weakened, the dust-removing wind of the cross-flow fan 22 is strengthened, and the dust removal effect can be enhanced. .

  When the dust-proof net 16 is stretched on the frame 15, as shown in FIG. 7A, the dust-proof net 16 is arranged along the front-rear direction, and the rear end of the dust-proof net 16 is attached to the frame. You may connect to the bending part 15c bent inside by 15 planar view. Further, as shown in FIG. 7B, the rear side portion of the dust-proof net 16 may be obliquely installed so as to be on the outer side in the plan view and connected to the rear side frame 15d of the frame 15. .

  Further, when driving the cross flow fan 22, the outer end of the cooling fan shaft 12 a along the inner and outer directions extends to the outside through the space of the radiator 13, and the fan shaft of the cross flow fan 22 along the longitudinal direction, for example, 22a and cooling fan shaft 12a may be arranged orthogonally, and cross flow fan 22 may be driven from cooling fan shaft 12a via a transmission with a clutch (not shown).

Next, another embodiment will be described with reference to FIGS.
10A, the fan shaft 12a of the cooling fan 12 extends outward from the central space 13a of the radiator 13, and the cooling fan 12 is detachably attached to the tip of the fan shaft 12a. Power is transmitted by the transmission device provided, and the cooling fan 12 is configured to drive forward or backward. When the dust-proof net 16 is stretched on the frame 15, the flat upper dust-proof net 16 a, the flat lower dust-proof net 16 b, and the bulging that covers the outer part of the cooling fan 12 at the middle in the vertical direction And an intermediate dustproof net 16d.

  According to the above configuration, the cooling fan 12 is rotated forward, and the cooling air removed from the outside to the inside of the dust-proof net 16 is sent to the radiator 13 to cool the radiator 13. Further, when the cooling fan 12 is rotated in the reverse direction, the dust removal wind can be sent from the inside of the dust-proof net 16 to the outside, and the dust adhering to the outside surface of the dust-proof net 16 can be removed.

  Further, a bracket (not shown) is extended from the frame 15 in the vicinity of the inner central portion of the dust-proof net 16, the boss of the cooling fan 12 is pivotally supported on the bracket via a bearing, and the cooling fan 12 is moved to the frame 15 side. Freely support. Further, the bulging intermediate dustproof net 16d of the dustproof net 16 may be fixed so as to face the periphery of the boss portion of the cooling fan 12, and the cooling fan 12 and the bulging intermediate dustproof net 16d may be integrally rotated. Good. With this configuration, the cooling fan 12 and the bulging intermediate dustproof net 16d rotate together, and the dust removal wind flows from the periphery of the bulging intermediate dustproof net 16d to the upper dustproof net 16a and the lower dustproof net 16b. Can be removed.

  Further, when the fan shaft 12a of the cooling fan 12 is extended outward from the radiator 13, the radiator 13 is divided into left and right radiators 13bb and 13c as shown in FIG. A portion may be formed to extend through the fan shaft 12a. Further, as shown in FIG. 10C, the radiator 13 may be divided into upper and lower radiators 13d and 13e, an opening in the front-rear direction may be formed at the center, and the fan shaft 12a may be extended through.

  Further, when transmitting power to the fan shaft 12a of the cooling fan 12, a transmission device with a clutch is disposed on the side of the periphery of the radiator 13 when viewed from the flow direction of the cooling air, and the power is transmitted to the cooling fan 12. The flow of cooling air to the radiator 13 can be improved, and the cooling effect can be enhanced.

2 traveling device 3 crawler traveling device 4 control unit 5 threshing unit 6
5 Glen tank 8 Cutting and conveying section 12 Cooling fan 12a Cooling fan shaft 13 Radiator 16 Dust-proof net 21 Dust removing device 22 Cross flow fan 22a Fan shaft 22b Fan side plate 22c Blade plate 23 Fan case 23a Suction port 23b Blowing gap 23c Blowing gap E Engine

Claims (4)

  In a combine equipped with a control part (4), a threshing part (6), a Glen tank (5), a cutting and conveying part (8), and an engine (E) for driving them, the engine (E) A dust-proof net (16) is disposed at the start end of the cooling air passage for supplying the cooling air, a cooling fan (12) is disposed at a location on the upper side of the cooling air passage with respect to the engine (E), and the cooling fan ( 12) and a dust-proof net (16), a radiator (13) is arranged, and a dust-removing device (21) is provided on the outer surface of the dust-proof net (16) so as to cross the dust-removing device (21). A cross flow fan (22) and a fan case (23) covering the cross flow fan (22) are configured, and the cross flow fan (22) is provided on the fan shaft (22a) and on both sides of the fan shaft (22a). The mounted fan side plates (22b, 22b) and the fan The blade case (23c) is attached to the outer periphery of the plate (22b, 22b) along the radial direction, and the fan case (23) has an inlet (23a) for sucking outside air and the dustproof A combine characterized in that a blow-off gap (23b) for blowing out dust removal air is formed along the outer surface of the net (16).   The radiator (13) and the dustproof net (16) are formed in a rectangular shape when viewed from the direction in which the cooling air flows, and the dust remover (21) is provided to face the outer surface of the dustproof net (16). (21) is arranged at one of the upper and lower side ends or the left and right side ends of the dust-proof net (16), and the outside air sucked from the suction port (23a) of the fan case (23) is blown out (23b) The combine according to claim 1, wherein the combine is blown out along the outer surface of the dust-proof net (16).   The radiator (13) and the dustproof net (16) are formed in a rectangular shape when viewed from the direction in which the cooling air flows, and the dust remover (21) is provided to face the outer surface of the dustproof net (16). (21) is arranged in a horizontal posture in the vertical middle portion of the dustproof net (16) or in a vertical posture in the horizontal middle portion, and the outside air sucked from the suction port (23a) of the fan case (23) The combine according to claim 1, characterized in that it is blown out along the outer surface of the dust-proof net (16) from the blowing gaps (23b, 23c) provided on both sides of the fan case (23).   The radiator (13) and the dustproof net (16) are formed in a rectangular shape when viewed from the direction in which the cooling air flows, and the dust remover (21) is provided to face the outer surface of the dustproof net (16). (21) is arranged to be inclined in the left-right direction, and the outside air sucked from the suction port (23a) of the fan case (23) is dust-proof from the blowing gaps (23b, 23c) provided on both sides of the fan case (23). The combine according to claim 1, wherein the combine is blown out along the outer surface of the net (16).

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